Image: github.com · GitHub source preview: An ESP32-S3 bridge prints Canon camera photos without a phone
An ESP32-S3 bridge prints Canon camera photos without a phone
BTL used Claude to help write firmware linking camera FTP transfers to a photo printer over USB or Wi-Fi.
Credits
Details reviewed:
The full story
BTL designed and tested a camera-to-printer bridge on an ESP32-S3 board, with Claude helping write the code. A camera sends JPEGs over FTP; the bridge resizes and rotates them, queues prints and sends them to an IPP printer.
The reported test pair is a Canon EOS R6 Mark II and SELPHY CP1500. The project offers a browser installer and optional USB printing, whose board modification and cable requirements need particular care.
Device and compatibility
- ESP32-S3 N16R8; Canon EOS R6 Mark II and SELPHY CP1500Source ↗
What you need
- For USB printing, the project warns never to connect the modified USB host port to a computer or charger after bridging its OTG power pads. Source ↗
What Claude did
- Firmware implementation assistanceClaude Source ↗
Parts and cost
- ESP32-S3 board with 16 MB flash and 8 MB PSRAMSource ↗about US$10
How it was done
Tools
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Sources
From the maker's own write-up or code. We summarise what they report; we haven't tested it ourselves.
- BTLtech1/esp32-photo-printer-bridgeRepository account: BTLtech1Repository created
Project repository; test status and limitations are described in its README.
- BTLtech1/esp32-photo-printer-bridge READMESource checked